Science vocabulary

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Across
  1. 2. any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance
  2. 5. a chemical reaction that involves the release of energy in the form of heat or light
  3. 7. a part or aspect of something abstract, especially one that is essential or characteristic.
  4. 8. a substance made by mixing other substances together.
Down
  1. 1. the state of being thick, sticky, and semi fluid in consistency, due to internal friction.
  2. 3. When an element completely disappears in water
  3. 4. any substance that in water solution is slippery to the touch, tastes bitter,
  4. 5. a chemical reaction that absorbs heat
  5. 6. matter cannot be created or destroyed in a chemical reaction